package com.openatc.agent.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * @Classname ApplicationContextProvider
 * @Description
 * @Date 2022/3/1 14:56
 * @Created by panleilei
 */
@Component
public class ApplicationContextProvider implements ApplicationContextAware{

        /**
         * 上下文对象实例
         */
        private static ApplicationContext applicationContext;

        @Override
        public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
            this.applicationContext = applicationContext;
        }

        /**
         * 获取applicationContext
         *
         * @return
         */
        public static ApplicationContext getApplicationContext() {
            return applicationContext;
        }

        /**
         * 通过name获取 Bean.
         *
         * @param name
         * @return
         */
        public static Object getBean(String name) {
            return getApplicationContext().getBean(name);
        }

        /**
         * 通过class获取Bean.
         *
         * @param clazz
         * @param <T>
         * @return
         */
        public static <T> T getBean(Class<T> clazz) {
            return getApplicationContext().getBean(clazz);
        }

        /**
         * 通过name,以及Clazz返回指定的Bean
         *
         * @param name
         * @param clazz
         * @param <T>
         * @return
         */
        public static <T> T getBean(String name, Class<T> clazz) {
            return getApplicationContext().getBean(name, clazz);
        }

}
